Résultats de la recherche

1. Possible effects of different levels of krill fishing on predators – some initial modelling attempts

   suggested by the Joint Meeting of CCAMLR's Working Group on Krill (WG-Krill) and Working Group for the ... krill predator species. A 'one-way' interaction model is developed, in which krill abundance ... 'two-way' interaction model (including also the effect of differing predator consumption ... development of the 'one-way' analyses. File:  06butterworth-thomson.pdf ... OF DIFFERENT LEVELS OF KRILL FISHING ON PREDATORS - SOME INITIAL MODELLING ATTEMPTS D. S ... I ~ Y Y ~ H H R B O ~ M O K H ~ I X nocnegc~s,~$i npomlcna Kptinx nnx nmamwaxcx KpMneM X M ~ H M ... K o J ' I ~ ~ ~ H M R nononHeHMx CosMecTHo C n p e ~ s a p ~ r r e n b ~ o i i ~ ~ @ o p ~ a q u ... estiman 10s parametros de 10:s indices de supervivencia de 10s depredadores en funcion de la abundancia ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 79–97 : Auteur(s): Butterworth, D.S. and R.B. Thomson

2. A functional division of Electrona carlsbergi (Tåning, 1932) area of habitat in relation to the latitudinal zonation of the Southern Ocean

   'S. The survey was mainly focussed on studies of distribution of adult and pre-spawning Electrona ... Southern Atlantic along two meridional transects at 17° and 20°W in the latitudes from 37°30' to 55°30 ... Zone and Subtropical Frontal Zone. The centre of the species' area of habitat is in the Sub ... transects at 17° and 200W in the latitudes from 37°30' to 55°30'S. The survey was mainly focussed on ... , entre les latitudes de 37°30' et 55°30'S. La campagne d'etude etait principalement axee sur un examen ... latitudes 37°30' y 55°30'S. La prospeccion estuvo enfocada en el estudio de la distribucion de Electrona ... in the latitudinal band between 37°30' and 55°30'S. The choice of these two meridians was dictated ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 369–395 : Auteur(s): Zemsky, A.V. and S.A. Zozulya

3. Effects of weather and sea-ice on the reproductive performance of the Adélie penguin at Edmonson Point, Ross Sea

   (Pygoscelis adeliae) was studied at Edmonson Point, Victoria Land, during the 1999, 2001 and 2003 breeding ... females were significantly longer than in 1999 and 2001, which in turn delayed the mean departure date of ... delayed compared to dates recorded in 1999 and 2001. The average weight of adults rearing chicks was lower ... Island. Antarctic Res. Series, 12: 191–212. Finney, S.K., S. Wanless and M.P. Harris. 1999. The ... Point, Victoria Land, during the 1999, 2001 and 2003 breeding seasons. Weather and sea-ice regimes ... than in 1999 and 2001, which in turn delayed the mean departure date of males on the second incubation ... recorded in 1999 and 2001. The average weight of adults rearing chicks was lower in 2003. It is suggested ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 99–109 : Auteur(s): Olmastroni, S., F. Pezzo, V. Volpi and S. Focardi

4. Estimation of natural mortality using catch-at-age and aged mark-recapture data: a multi-cohort simulation study comparing estimation for a model based on the Baranov equations versus a new mortality equation.

   'fully parametric' BODE model is based on the Baranov ODE while the 'semi-parametric&#039 ... time and does not estimate annual fishing mortality rates (i.e. the F ’s) or fishing selectivity ... accounting for age- and year-specific fishing mor- tality. Quinn and Deriso (1999, page 360) note that ... -effort data and the ‘extended survivors’ method of Shepherd (1999). Leigh et al. (2006) use data for a ... (Baranov, 1918; Quinn and Deriso, 1999) ODE (BODE model) is based on fishing mortal- ity expressed as a ... Deriso, 1999). The effects of the result- ant observational (i.e. estimation) errors in catch- at-age ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 1–27 : Auteur(s): Candy, S.G.

5. Marine debris and fishing gear associated with seabirds at sub-Antarctic Marion island, 1996/97 and 1997/98: in relation to longline fishing activity

   and the 1997/98 field seasons. Fishing gear increased at a rate 10 times higher than 'other&#039 ... ; (non-fishing) marine debris over this period. Sixty 'rope nooses' apparently used for ... most frequently in association with wandering albatross nests, while 'other' (non-fishing ... CCAMLR Science, Vol. 6 (1999): 85-96 MARINE DEBRIS AND ... ~ ~ O C ~ X , 0 6 ~ a p y X e ~ ~ b S x B aCCOUHaUHH C MOPCKHMH IlTHUaMH Ha C Y ~ ~ H T ~ ~ K T H Y ... profundidad (Dissosticht~s elegitzoides) en 10s frigorificos de congelado rapido, y 23 anzuelos utilizados en ... debris, seabirds, incidental mortality, longline fishing, toothfish, Dissosticlu~s elegiizoides, Marion ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 85–96 : Auteur(s): Nel, D.C. and J.L. Nel

6. A first step towards modelling the krill–predator dynamics of the Antarctic ecosystem

   ; Nicol and Endo, 1999). These problems were overcome and catch increased again until the break-up of ... Coria, 1992), the South Shetland Islands (Daneri, 1996; Casaux et al., 1998; Daneri et al., 1999 ... whales (Kato, 1983; Thomson et al., 1999; Zenitani and Kato, 2005). Analyses of catch-at-age data using ... the ADAPT-VPA method (Butterworth et al., 1999, 2002; Mori and Butterworth, 2005) also suggest a ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 217–277 : Auteur(s): Mori, M. and D.S. Butterworth

7. The role of fish as predators of krill (Euphausia superba) and other pelagic resources in the Southern Ocean (submitted to the 2008 Joint CCAMLR-IWC Workshop)

   which rarely grow older than five years (Linkowski, 1987; Greely et al., 1999). The larger-growing ... (1999) and Donelly et al. (2004) for the Indian sector and the eastern Ross Sea. These were derived ... Froneman, 1999; Williams et al., in prep.). The proportion of krill in the diet of E. carls­ bergi in the ... . Reid et al., 1996; Brierley, 1999). This is corroborated by observations that, due to its size most ...

   Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 115–169 : Auteur(s): Kock, K.-H., E. Barrera-Oro, M. Belchier, M.A. Collins, G. Duhamel, S. Hanchet, L. Pshenichnov, D. Welsford and R. Williams

8. Statistical power to detect changes in growth rates of Antarctic fur seal pups

   (60°59.5'S, 55°24.5'W), the simulations suggest that following the protocol of the Standard ... Standard Method C1 (B). Using estimates of variance in pup weights obtained at Seal Island (60 0 59.5'S ... sur les estimations de variance de poids des jeunes, obtenues a 1'lIe Seal (60 0 59,5'S, 55°24,5'W ... variaci6n en el peso de los cachorros obtenidas en la Isla Seal (60 0 59,5'S, 55°24.5'W), las simulaciones ... parameters of predatory species. CCAMLR, WG-CEMP-89/S. SOKAL, R. R. AND F. J. ROHLF. 1981. Biometry. San ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 399–409 : Auteur(s): Boveng, P., J.L. Bengtson and M.E. Goebel

9. Refinements to the strategy for managing depleted fish stocks based on CCAMLR objectives

   studies for defining the terms 'depleted' and 'target levels for recovery' are briefly ... basis of conventional fisheries models. Similarly, identifying stock-recruitment (S-R) relationships ... (denoted L). These particular forms were chosen because they represent the bounds of the plausible S-R ... distribution with median determined by the S-R relationship and a coefficient of variation of 0.4. The ... , the S-R relationship plays a major role in determining the critical value of the fishing mortality. A ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 467–475 : Auteur(s): de la Mare, W.K. and A. Constable

10. Feeding patterns of nine species of Antarctic fish and assessment of their daily food consumption

    station was carried out in the Kosmonavtov Sea (67°50'S; 41°24'E) in March 1988. All samples ... Kosmonavtov Sea (67"50'S; 41°24'E) in March 1988. All samples were taken from the depth range 300 to 350 m ... la mer Kosmonavtov (67°50'S; 41°24'E) en mars 1988. Tous les echantillons ont ete preleves de la ... realiz6 una estaci6n de 36 horas de duraci6n en el mar de Kosmonavtov (6T50'S; 41°24'E) en marzo de 1988 ... station was carried out in the Kosmonavtov Sea (67°50' S; 41°25'E) on 23 to 24 March 1988. Adult ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 321–333 : Auteur(s): Pakhomov, Y.A. and V.B. Tseitlin

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